10 Terrifying Moments on Unscripted TV

We all know the show's reggae theme song ("Bad boys, bad boys, what'cha gonna do, what'cha gonna do when they come for you?"). But it's easy to forget just how bad the suspects on "Cops" can be -- and how dangerous it is to be a police officer.

The season 20 premiere of "Cops" begins with in-dash footage of a suspect shooting an officer, and the episode opens with the subsequent on-foot police chase. We follow Officer Caleb Lenz, who, along with a team of other officers and a trained police dog, effectively and efficiently apprehends the suspect. The police officers take every proper precaution, and although no other officers are injured, we can see the fear and resolve in Lenz's face.

Chasing down a brazen shooter is as real as it gets, and it's clear that Lenz and his men are putting their lives on the line. It's a thrilling, terrifying and -- after the suspect is apprehended -- extremely gratifying moment of reality TV that reminds us why this groundbreaking show is still on the air after all these years.